171 citations · 3.8k across the 172 of their papers we have counts for
7 papers · 1 filter
Full tomography from compatible measurements
J. Rehacek, Z. Hradil, Z. Bouchal +3
We put forward a reconstruction scheme prompted by the relation between a von Neumann measurement and the corresponding informationally complete measurement induced in a relevant r…
Angular performance measure for tighter uncertainty relations
Z. Hradil, J. Rehacek, A. B. Klimov +2
The uncertainty principle places a fundamental limit on the accuracy with which we can measure conjugate physical quantities. However, the fluctuations of these variables can be as…
Non-negative Wigner functions for orbital angular momentum states
I. Rigas, L. L. Sanchez-Soto, A. B. Klimov +2
The Wigner function of a pure continuous-variable quantum state is non-negative if and only if the state is Gaussian. Here we show that for the canonical pair angle and angular mom…
Depolarization for quantum channels with higher symmetries
A. B. Klimov, L. L. Sanchez-Soto
The depolarization channel is usually modelled as a quantum operation that destroys all input information, replacing it by a completely chaotic state. For qubits this has a quite i…
Discrete coherent and squeezed states of many-qudit systems
A. B. Klimov, C. Munoz, L. L. Sanchez-Soto
We consider the phase space for a system of identical qudits (each one of dimension , with a primer number) as a grid of points and use the finite f…
Robust stationary entanglement of two coupled qubits in independent environments
M. Scala, R. Migliore, A. Messina +1
The dissipative dynamics of two interacting qubits coupled to independent reservoirs at nonzero temperatures is investigated, paying special attention to the entanglement evolution…